How soon can we expect fishing to improve after a rotenone treatment?
A. Fish stocking can begin as soon as biologists determine that it is safe to re-introduce fish. Generally, small fish are stocked because they are cheaper. This means more can be stocked but a longer time will be required for them to grow to catchable size. Depending on the growing season, most waters will have good fishing within two to three years after treatment. As a general rule, aquatic invertebrate populations return to pre treatment levels within several months to one year.
